From: Breath-holding as a novel approach to risk stratification in COVID-19
 | Primary model β ± SEM (p value) | Parsimonious model β ± SEM (p value) |
---|---|---|
Breath-holding measurements | ||
 Mean desaturation (%Hb) | 1.27 ± 0.59 (0.002) | 1.25 ± 0.54 (0.001) |
 Maximal breath-hold duration (s) | 0.10 ± 0.05 (0.037) | 0.10 ± 0.05 (0.020) |
 Ventilatory response (%baseline) | 0.00 ± 0.01 (0.9) | — |
Covariates | ||
 Body mass index (kg/m2) | 0.22 ± 0.22 (0.3) | 0.27 ± 0.19 (0.157) |
 Baseline SpO2 (%) |  − 0.44 ± 0.22 (0.001) | -0.45 ± 0.22 (0.001) |
 Cardiovascular disease | 4.47 ± 2.71 (0.064) | 5.27 ± 2.38 (0.019) |